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Off topic discussion • Re: Questions That Are stuck or overthinking it

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So pi can handle the brick while i am not home
Thank You So Much :D
Not exactly what I said. To repeat... If there are power issues, drop outs greatest risk is corrupting the SD card. Surges/spikes have the greatest risk to anything plugged in a wall socket and on downstream to anything connected. Let us suppose your power line takes a lightning strike. That will cause a voltage spike on your lines. So the first thing that will have to deal with that spike is your power supply (unless there is protective equipment between the wall plug and your power supply). If the power supply fails, what happens next will depend on exactly how it fails. It may fail safely and all that happens is the Pi shuts down for lack of power. Or it may fail in an unsafe manner and the spike gets through to fry the Pi.
All i need is back up my sdcards right
You should do that even if you don't have power problems. That's just a basic data security/preservation action to take. With your power problems, you need to do this more often than if your mains power is reliable.
And soon i will buy a new charging brick
Also Powerbank
Get the official RPL PSU for your Pi. It'll be inexpensive and reliable.

A powerbank is NOT a UPS. Powerbanks don't have surge protection built in and most of them won't allow seamless running across input power drops. So...not a powrbank. Get an actual UPS.
Can you recommend for me what capacity of powerbank i need?
A Pi02W should run on less than 250mA at 5v. That's 1.25W. Figure how long you want the powerbank (which is NOT what I'd recommend--see above) to run the Pi. Powerbank capacities are usually listed as the nominal cell voltage of 3.7v. So a 10Ah powerbank has a total capacity of 37Wh. (I'm not going into the weeds of how to calculate these things today...I've done it many times before.) Figure out what Wh rating you need from your own data.

Statistics: Posted by W. H. Heydt — Fri Mar 07, 2025 3:55 pm



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